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\begin{document}

\title{Predator-driven behavioral shifts in a common lizard shape resource-flow
dynamics from marine to terrestrial ecosystems}



\author[1]{Oriol Lapiedra}%
\author[2]{Nina Morales}%
\author[3]{Louie Yang}%
\author[4]{Darío Fernández-Bellon}%
\author[5]{Sozos Michaelides}%
\author[6]{Sean Giery}%
\author[7]{Jonah Piovia-Scott}%
\author[8]{Thomas Schoener}%
\author[9]{Jason Kolbe}%
\author[10]{Jonathan Losos}%
\affil[1]{CREAF}%
\affil[2]{Harvard University}%
\affil[3]{UC Davis}%
\affil[4]{School of Biological, Earth and Environmental Science (BEES). University College Cork}%
\affil[5]{Concordia University}%
\affil[6]{Penn State}%
\affil[7]{Washington State University - Vancouver}%
\affil[8]{Division of Biological Sciences}%
\affil[9]{University of Rhode Island}%
\affil[10]{Washington University}%


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  \date{May 28, 2024}


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\begin{abstract}
Foraging decisions shape the structure of food webs. Therefore, a
behavioral shift in a single species can potentially modify
resource-flow dynamics of entire ecosystems. To examine this, we
conducted a field experiment to assess foraging niche dynamics of
semi-arboreal brown anole lizards in the presence/absence of predatory
ground-dwelling curly tailed lizards in a replicated set of island
ecosystems. One year after experimental translocation, brown anoles
exposed to these predators had drastically increased perch height and
reduced consumption of marine-derived food resources. This foraging
niche shift altered marine-to-terrestrial resource-flow dynamics and
persisted in the diets of the first-generation offspring. Furthermore,
female lizards \selectlanguage{ngerman}¬¬that displayed more risk-taking behaviors consumed more
marine prey on islands with predators present. Our results show how
predator-driven rapid behavioral shifts can alter food-web connectivity
between oceanic and terrestrial ecosystems and underscore the importance
of studying behavior-mediated niche shifts to understand ecosystem
functioning in rapidly changing environments.%
\end{abstract}\selectlanguage{ngerman}%



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